Bolster.



IHVENTOR 2 SHEETS-SHEET 1 :EATBNTBD AUG. 4, 190s;

H. MKM.l BOLSTEB. APPLICATION FILED FEBAQ, 15618.

N 081V .n f nu l 'State of f'UNlQVlED STATES PATENT FFlCl. y j A Y `Hmm' AlKlflN, o1.` rlfwrsuno, PENNsYnvAmA. I' I i sons'rnn. v l 'I o Specification of Letters Patent.

Patented nog. 4, isos.

Application filed February 19, B308. Serial No. 416,651.

. To all whom it mo concern.'

.Be it known t at I, HnNRrAAlnEri, of Pittsburz in the county of Allegheny and and useful Im rovement in Bolsters, of

which the following is a. full, cleer, sind exact description, reference being bod to. the sc comosnying drawings, forming'pert oi this specification, in Which-'- I1'0' Figure 1 is s front elevation, partly in section, showing e. cer proirided with my im` 'roved bolsters Fiss. 2 and 3-ere cross sections on tbe lines I-H' end Iii-111.0%

1, ,resoectir'reiy, showing the 'body' bolster;

lsnnd ligsfi end 5 are respectiyely a. 'longitudinel section oi the end oortion and s'centrel cross-section ofthe truc bolster;

My inventionrelstes to the class of bolsters, both bod boisters end truck bolsters,

and is to provides cheep, simple A end-tberebyseenred to, the 'Wrought metal' lend strong/ construction therefor.

- To tiret end,'tbe invention" consists in forming tbe compression member of s. steel cesteegf its end portions flowed about,

. tension momia-e1".

so fnerdber, end pr .i

85 rovided with integral sie it sise consists in providing tbe spacer end center siete stricture et'interrnediete points,

.by costing it es i o of tbe compression f sbegeed so as to it .tbe mouffbt t h lntiie costringe, il@ 3,'2 represents c i member of the body bols esireble cross section .l shape its end-portions fior-ved end-cest @bont tbe' rioreted ends, oi Atbe tension nernb'er f', Y his 'tension member is eircom-es conssstnsg 4Q .of inserted channel beving'side fiancee-fi taining cavities 5 5,-ior`iigbtness in tiie 'pert- 4 4 tbeweb being geroreted et the ends, es shownin 231gs 2. .in cese, fbeveslso shown the end portion of the 'compression member es formed onsseieton'sbepe, 'coninclosing tbe channel tension -membe:.' c

. As shown vin Fis'. 3,'tl1e strutfor-centen lete portion is formed es a cost bob-.ow ox; with its top ortica shaped to '5t neetly within the cbr-inne and its lower portion haw v mold wnich is arranged to receive the com pression member, sc thet .tbe metal may be nnsylvsnie, heve invented a. new- 'otist einst it at the central portion and oroun' -and nelosing it at the end portions.

Referring now to Fig. 1, in connection with Figs. 4 end 57 9 is the cest compression mem# bero tHe-thick bolster, having its end or- -tions 10 'iowed and .cast around the hoo ed or' bent end portions 11 of' the rolled I or wrought tension member. it the seme time 'that theconipression member is cest, I preferebl cest intesrol with it tbe center'plate 12, t e spacer block 13 bevinga. recessed lower portion 14, to over the tension member endtbe king pin sleeve 15. These erts me be of eny esirsble form, and the 's ape an errcn'elnent of ine costing in either cese niey e Widely irsried, es Well as the shspe end connection of the Wrought met-al member, since I considermysel the first to form e. bolster of s. cest compression member Whose integr-el ends eresozred about end inclose the end portions ofthe tension member. In either cese, the center plete and spacer block moy be formed sepsretelyfrom the com ression r meonber. A

' Toe sdventeges of rn invention result' from tbe cbeeoness simniicit end stren th of tbe structure, tno nee ci' rivets, bolts end other ieetening ineens done "ewey with, e stresser construct n oiiorded et smoil leser cost. By fior-ing steel or other cest metal tbroegn or er endone of .the parte, tbeysre rrni' secjoredtogether and the end portions 'ci' tec body boister may be eesilg'y sbeped to promos mee-ns for securing. to `toe csr body, in tbe' cose of the truck boister, tbe sprirsz piste may be formed with casting.

Many obenges may be mede in the form cnd-errongement of the parts without departing from my invention.

1. Aboister having s. `Wrought metal ten- I 2. A bolster having e cest metal compres- Y sioninember with' its integral -end portions o'ed through end 'around holes or recesses formed in tbe tension member, 'substantially' os described. Y

3. A. bolster having s. cest metal compressionmen'lb-er-rrith the' ends of the tension member embedded therein, the compression member hsving enintersl center plete structure. substantially as escribed. j f

74. A bolster' having a cast com ression tion of. the tension member, the ends of the member with a 'center'plete spacer b ook and tension member being embedded in the cast king pm socket formedintegral therewith, metai formin the compression member, subthe ends of the com ression member being stantlally as escribed. Y -j f 5 owed Vabolzt and inc osing the end portions In testlmony whereof, Ihave hereunto set 15 of the tenslon member, substantiall f es -demy hand. I i scribed. s .NRY AIKEN. 5. A bolster having a cast `compression A Vitnesses: A 5 member-With an integral cast spacing strucl GEO. B. BLE'MING, l I 10 ture arranged tovt against the central porr JOHN MILLER. j. 2 

